Final answer:
The mesosphere is characterized by burning meteors and extends up to 85 km high. The thermosphere lies above the mesosphere to 600 km high and is known for the auroras, satellites, and encompassing the ionosphere. The exosphere is the outermost layer of the atmosphere.
Step-by-step explanation:
To sort the phrases about the mesosphere and the thermosphere into the correct categories, let's focus on the key characteristics of each atmospheric layer based on the content provided.The mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Notable events in this layer include the incineration of meteors, which burn up before they can strike the Earth's surface.
The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high. This layer is characterized by phenomena such as the Aurora borealis and the presence of satellites orbiting the Earth. Additionally, the thermosphere includes the ionosphere, an abundant layer of electrons and ionized atoms and molecules, which facilitates critical radio communications and grows and shrinks based on solar conditions.The exosphere is considered the outermost layer or the upper limit of Earth's atmosphere which extends from the top of the thermosphere up to 10,000 km (6,200 mi).In summary the mesosphere is where meteors burn up while the thermosphere accommodates the aurora and satellites and contains the expansive ionosphere. The exosphere marks the atmospheric boundary.